Combined sound activated switch and cover plate

Information

  • Patent Grant
  • D312611
  • Patent Number
    D312,611
  • Date Filed
    Thursday, August 11, 1988
    35 years ago
  • Date Issued
    Tuesday, December 4, 1990
    33 years ago
Abstract
Description
Claims
  • The ornamental design for a combined sound activated switch and cover plate, as shown and described.
US Referenced Citations (2)
Number Name Date Kind
2957957 Johnson Oct 1960
4230317 Breslow Oct 1980
Foreign Referenced Citations (2)
Number Date Country
1585760 Mar 1981 GBX
2098011 Nov 1982 GBX
Non-Patent Literature Citations (1)
Entry
Sporty's Tool Shop; .COPYRGT.1985; p. 30; Sound Activated Switch (left of center).